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Joint Stock Company "Olainfarm"
| Joint Stock Company "Olainfarm" Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20100022784 | N-Carbamoylmethyl-4-(R)-Phenyl-2-Pyrrolidinone, Method of its Preparation and Pharmaceutical Use - The invention relates to the R-enantiomer of N-carbamoylmethyl-4-phenyl-2-pyrrolidinone (R-Carphedon) of pharmacological value. The method of its preparation includes the N-alkylation of 4(R)-phenyl-2-pyrrolidinone with ethyl bromoacetate in the presence of a strong base and the treatment of intermediate N-ethoxycarbonylmethyl-4(R)-phenyl-2-pyrrolidinone with ammonia. | 01-28-2010 |